IMPROVED PROTECTIVE WATERPROOFING MEMBRANE, PARTICULARLY FOR COATINGS OF WALLS AND PAVINGS

Abstract: Protective waterproofing membrane particularly for exterior and/or interior coatings, of walls and pavings generally, of the types made in plastic material and comprising a plurality of protrusions all on the same side, in which, limited to the overlapping area or along the vertical junction edges, protrusions (2, 2') are provided having a different configuration in respect to the remaining surface of a sheet from a pre-determined width, said protrusions constituting respectively a male and female closure provided with a seal, which development requires both on the left and right side, an ensemble of cylindrical forms joined in groups of five, where one or the other provides a series of forms (5) also cylindrical but of a smaller diameter to the preceding and interposed in rows that are vertical to said groups.

Description: DESCRIPTION Improved protective waterproofing membrane, particularly for coatings of walls and pavings The present model has for an object a protective waterproofing membrane particularly for exterior and/or interior coatings, of walls and pavings generally. The invention, finds particular if not exclusive application among products destined to the building section, and in more detail in the installation of filled-in supporting structures, such as foundations. In prior art the technical functional characteristics and the multifarious advantages that offer the protective membrane are known. These, especially recently, have practically replaced the somewhat empirical traditional methods of treating walls and pavings, as for example those impregnating surfaces composed of bituminous, tending predominantly to waterproofing. As a result, said membranes, have found increasingly vast use solving, at least partly, problems that the preceding techniques could have created, which could have been, for example, a slow and difficult installation, insufficient waterproofing, the necessity to provide a drainage technique, with other disadvantages of functioning techniques which those noticeable commonly in the confrontations of a good part of the supporting structures directly in contact with the soil. On the market it is also possible to verify that the greater part of the membranes, have characteristics decidedly common to each other. In first place, they are made in a semi-rigid plastic material, according to determined heights, to be, from one side conveniently adaptable to the surface to coat, and from the other commercialized in spools 1 therefore easily moveable. In second place provides equidistant and 2 complanate protrusions, distributed with uniformity and protruding if 3 compared to the surface, as well as being made indifferently according 4 to a section usually conic or semi-conic. Some types, can also provide 5 rib stiffening, which in practice join vertically, any protrusion. The 6 application of the membrane on the interested surface must provide 7 protrusions facing the wall, so obtaining an interspace having a 8 thickness of at least equal height of said protrusions made on the 9 membrane. Advantages of the interspace so obtained, consist in a good I 0 ventilation offering a good protection from humidity for the structures I I on the ground, realising at the same time an effective drainage system. 1 2 A further characteristic of the membranes, not less important 1 3 than that of the preceding ones, consists in that, between sheet and 1 4 adjacent sheet an overlap is possible, anchoring the respective end 1 5 until obtaining a logic and complete continuity of the coating. The 1 6 overlap in definitive, is possible thanks to the main configuration of 1 7 protrusions which consent, overlapping itself, the insertion of one 1 8 within a correspondent hollow made in contra-position from the other 9 sheet so overlapped. Such techniques of fixed joint anchorage is known 0 in various sectors, and one completes by providing finishing 1 accessories for the installation, which can consist in a closing profile 2 of the longitudinal edge fixable to a wall and in provided fixing means 3 of suitable washers or plugs, which hold to the wall and in more points, 4 the said membrane. 5 In above shown solutions, however different drawbacks are 6 noticeable. In first place it can be affirmed that, generally, because of 7 the type of coupling adopted it is not possible to reach a sufficient 8 sealing uniformity of the overlapping edges. As a result the junction line will have connecting zones, in which both water and air can easily filter decreasing the protective effectiveness of the membrane. Furthermore, the different and inappropriate configurations of protrusions, do not consent to optimize the advantages of said membrane type. Aim of the present invention is to obviate to the above- mentioned drawbacks. This and other aims are reached with the present innovation according to the characteristics of the included claims solving exposed problems by means of a protective waterproofing membrane particularly for coatings, exterior and/or interior, of walls and pavings generally, of the types made in plastic material and comprising a plurality of protrusions all on the same side, in which limited to the overlapping area or along the vertical junction edges, protrusions are provided having a different configuration in respect to the remaining surface of a sheet from a pre-determined width, said protrusions constituting respectively a male and female closure provided with a waterproof seal, which development requires both on the right and left side, a ensemble of cylindrical forms joined in groups of five, where one or the other provides a series of forms also cylindrical but of a small diameter to the preceding and interposed in vertical rows to said groups . In such a way, it is possible to obtain a extremely innovative membrane and at the same time easy to use, as well as able to greatly improve the functions provided by preceding membranes. More in detail, thanks to the particular type of overlapping and waterproof junction, it is possible to protect surfaces of walls and pavings, destine to extremely bad conditions and avoid water stagnation and movements for capillarity for walls on the ground. In second place it increases the sound absorbent characteristics of pavings, creates an air chamber between the exterior and foundation and has optimal characteristics for draining eventual water sources. These and other advantages will appear from the successive specified description of a preferential solution of realization with the help of the included drawings which particulars of execution are not to be considered limitative but preferably illustrative. Figure 1 represents a partial frontal view of a membrane which evidences two lateral ends of a junction for overlapping. Figure 2 represents a schematic view and from above of the ends of two membranes to be superimposed to make the continuity of the coating of a surface. Making reference to the figure it is disclosed that a polymeric membrane, of the type with the drawing made for thermoformation, is available in sheets (A) from a continuous spool in the usual heights or even providing breaking lines of pre-marked modules according to the pre-determined widths. Alternatively, single sheets (A) of desired sizes can be supplied, and therefore stacked. In this case every sheet (A) provides a series of protrusions on the wall side, which configuration varies depending on the position in which they are distributed. More in detail, the sheet subdivides essentially in three protruding areas, respectively one central (a) which occupies most of the surface and two at the end constituted with vertical strips, respectively obtaining from one side a male closure (b) and from the other a female closure (c). The central area (a), that determines the thickness of the interspace of ventilation between the wall (B) and the membrane (A), is composed from a ensemble of clews (1), having a section almost semispherical with the resting plane (1'). The disposition of these clews (1) is in groups of five, aligned, respectively four perimetrical diametrically opposite and one in a central position, slightly apart from each other, until completing the sector (a) of the sheet (A). Along the lateral ends of every sheet (A), the male (b) and female (c) closures are made vertically and on the same faces, which for the overlapping of two sheets (A) consent the junction and therefore the logic continuity of a coating for surfaces. As far as regards to the male closing side (b), a series of protrusions (2) are made, with cylindrical section, these also grouped in five units respectively four perimetrical diametrically opposite and one in a central position. The drawing of sheet (A), provides that a first series of protrusion groups (2) both disposed in a row near the vertical end of the sheet (A). Parallel to said first row, a second row of protrusions are provided analogously cylindrical (2), defining among the same a space (3), in practice a vertical strip, which function is to contain the sealing material, as for example double sided adhesive tape (4), which besides being of help to the joints to be superimposed for a greater mechanical seal, realizes a discreet barrier to the possible infiltrations offering a complete waterproofing. Also at the opposite end (c) of the same sheet, or on the side of the female closure, protrusions (2') are provided, with cylindrical section, grouped in fives, and respectively four perimetrical diametrically opposite and one in a central position. As a result, to allow the coupling with the male closure (a), of a same sheet (A),a first series of protrusions (2) grouped and disposed in two rows is provided, equal to this last, of which one near to the vertical end of the sheet (A) and one logically more internal. The elapsing space between the two rows of analogously cylindrical (2') protrusions, third protrusions (5) are provided, also cylindrical, disposed in an intermediate position and vertically in rows of three. Said protrusions (5) in this case, are dimensionally smaller in diameter in respect to the protrusions (2-2'), and consent, from the opposite surface, the obtainment of a pair of bumps (5') contrary to the preceding which, overlap the edges of the sheets (A), insisting along the strip of the seal (4).

Claims: CLAIMS 1. Improved protective membrane, particularly for modular coating of walls and pavings generally, of the types superimposable with an analogue for mechanical junction, obtaining the continuity of the coating, made in plastic material and comprising a plurality of protrusions all on the same side, characterised in that every sheet (A) provides a series of protrusions on the wall side, distributed in three areas, respectively one central (a) which occupies the greatest part of the surface and two ends made from vertical strips provided with protrusions from different configuration, obtaining respectively from one side a male closure (b) and from the other a female closure (c). 2. Improved protective membrane, according to claim 1., characterised in that limited to the overlapping area or along the vertical junction edges, protrusions are provided having a different configuration if compared to the remaining surface of a sheet, said protrusions constituting respectively a male and female closure provided with a seal, which development requires both on the left and right side, an ensemble of forms in groups, where, one or the other provides a series of third forms disposed in vertical rows in an intermediate position and interposed between said groups. 3. Improved protective membrane, according to claims 1. and 2., characterised in that the side of male closing (b) is composed of a series of protrusions (2), with cylindrical section, grouped in five units respectively four diametrically opposite and one in a central position, and in which a first series of protrusions (2) is disposed in a row near the vertical end of the sheet (A), while parallel to said first row is provided a second row of protrusions analogously cylindrical (2), defining among the same a space (3). 1 4. Improved protective membrane, according to claim 3., characterized 2 in that the space (3) of the side of the male closing (b) defines a 3 vertical strip able to contain a sealing material and/or a seal like 4 double sided adhesive tape (4). 5 5. Improved protective membrane, according to preceding claims, 6 characterised in that at opposite ends (c) of a same sheet (A), or on the 7 side of the female closure, being logically correspondent, are provided 8 with: 9 - protrusions (2'), with cylindrical section, grouped in fives, and I 0 respectively four diametrically opposite and one in a central position, I I of which a first series of protrusions (2') near the vertical end of the 1 2 sheet (A) and one logically more internal; 1 3 - as well as third protrusions (5), also cylindrical, disposed 1 4 intermediatly and vertically in rows of three in the elapsing space 1 5 between the two rows of protrusions analogously cylindrical (2'). 1 6 6. Improved protective membrane, according to preceding claims, 1 7 characterised in that said protrusions (5), are dimensionally smaller in 8 diameter in respect to the protrusions (2-2'), and from the opposite side, 9 obtain a pair of bumps (5') contrary to the preceding which, overlap 0 the edges of the sheets (A), along the strip of seal (4). 1 7. Membrane, according to preceding claims, characterised in that the 2 central area (a), that determines the thickness of the interspace of 3 ventilation between the wall (B) and the membrane (A), is constituted 4 from an clews ensemble (1 ), having a section almost semispherical 5 base provided with a resting (T) plane. 6 8. Membrane, according to preceding claims, characterised in that it is 7 available both in sheets (A) achieved from a continuous spool also 8 providing the breaking lines pre-marked according to the pre- determined sizes, as well as alternatively in single sheets (A) of wanted sizes being previously stacked.

Inventors: MAZZER LUCIANO, MAZZER, LUCIANO
Applicants: MAZZER LUCIANO, TEMA TECHNOLOGIES AND MATERIAL, MAZZER, LUCIANO, TEMA TECHNOLOGIES AND MATERIALS S.R.L.
Application year: 1994
Main classification: E02D31
IPC codes: E02D31, E04F15